pirs piru pise pish pisi piss pisu pius ppcc ppci ppcs pper pphi pphs ppib ppic ppie ppih pppp ppps pprc ppru ppsh ppss ppur prbc prbs prcc prcp prcs pre- preb prec pree prep pres preu prhs pri- prie prii pris prps prri prrs prsc prse prsi prss prue prus pruu psbr psci pscu pseb psec psei pshc pshs psip psis psph pspi pspp pspr psps psrp pssc psse pu-e pube pubs pubu puce puch puer pueu puhi puir puis puiu pupe pupi pups pupu pur- purb pure puri purp purr purs puru push pusi puss puuc rbbb rbbr rbbs rbhs rbis rbsp rbss rcbc rccb rccc rccs rcep rchb rchs rcic rcis rcpi rcps rcsc rcsi rcss rebb rebe rebs rebu recc rece rech reci recp recr recs recu reeb reep rees rehb rehe rehi rehs reii reir reis reiu repe repi repp repr reps repu rere reri rers reru rese resh resi resp ress reue reup reus reuu rhce rhcp rheb rhee rhes rhhs rhib rhue rhus rib- ribe ribs ribu ricc rice rich rics riep rier ries rieu rihs riis ripe ripi ripp ripr rips rire riri rirs risc rise rish risi risp riss risu riue rius rpcs rphs rpii rpps rrhs rrrr rrsp rsbi rscc rsch rscs rsee rshs rsis rspb rsps rsre rubb rube rubi rubp rubs rubu ruce ruch ruci ruer rues ruhe ruhh ruhi ruhr ruhs ruis rupe rupp rurc rure ruri rurp rurs ruru ruse rush rusi russ rusu s-ib s-ic s-ii sbbs sbcc sbcs sber sbhc sbhs sbic sbse sbsi sbsp sbus scbi sccc scce sccp sccs scec scee scep scer sch- sche schh schi schr schs sci- scic scie scip scir scis scpb scpe scpi scps scr- scrc scre scri scrs scsc scsh scsi scsr scsu scub scup scur se-c se-e se-h se-i se-s se-u sebe sebi sebs sec- secc sece sech secr secs secu seeb seec seeh seep seer sees seeu sehe sehr sehs seie seih seii seip seir seis seiu sepe sepi sepp sepr seps sepu serb serc sere seri serp serr sers seru sesc sese sesh sesi sess seui seur shbs shcc shcp she- sheb shee sheh shep sher shes sheu shhh shhs shib shie shih shii ship shir shis shiu shps shre shri shrp shrs shsc shub shue shui shup shur shus shuu sibc sibe sibi sibs sibu sicc sice sich sici sicp sics sicu siec sier sies sihi sihr sihs sihu sipc sipe sipi sipp sips sirc sire siri sirp sirr sirs siru sisc sise sish sisi siss sisu siue siui sius spcc spcs speb spec spee sper spes sphr sphs spib spic spie spip spir spis spps spri sprs spse spsp spss spue spui spur spus srbc srcc srch sreb srec sres srhs srib sris srpc srps srsp srub ssbr sscc ssce ssci sscp sscs ssec ssee ssep sses sshs ssis sspc sspe ssps ssrc ssri ssrs sssb sssc sssh sssi ssss sub- subb subh subi subs suc- succ such suci sucr sucs suee suer sues sueu suhb suhi suhr suie suir suis sup- supe suph supp supr sups sur- surc sure suri surp surr surs suru sus- suse susi susp suss susu suus u-ie u-rp ubbe ubbi uber ubic ubii ubir ubis ubpc ucbc ucci uccp uces uche uchi uchs ucpb ucph ucrc ucsb ucsc ucsu ueir uepi uers uess uher uhrs uhss uhuh uhup uies uipi uirr uise upbe upci upcs upic upie upis uppc uppe uppp uppu upri upsc upse upsi upup urbe urbi urbs urch urci ure- ureh ures urib uric urie uris uriu urre urrh urri urse ursi urss ursu urup urur urus usbc usbe usbr usbs uscc usce usch uscs usee user uses ushi ushr ushs ushu usie usip usis uspc uspp usps ussb ussc usse ussr usss ussu usui usus uucp uuri uusi uuuu